CN103016856B - Fiber mesh tape-wound and reinforced composite pipe, preparation process and device - Google Patents
Fiber mesh tape-wound and reinforced composite pipe, preparation process and device Download PDFInfo
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- CN103016856B CN103016856B CN201210502640.3A CN201210502640A CN103016856B CN 103016856 B CN103016856 B CN 103016856B CN 201210502640 A CN201210502640 A CN 201210502640A CN 103016856 B CN103016856 B CN 103016856B
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Abstract
The invention relates to a fiber mesh tape-wound and reinforced composite pipe, a preparation process and a device, belonging to the technical field of forming processes of composite pipes. The composite pipe comprises an inner-layer core pipe and a post-coated layer, as well as a fiber mesh tape arranged between two layers, wherein the inner-layer core pipe is extruded by a core pipe extruding machine, the adhesive resin fiber mesh tape is heated through a post-heating box, and the composite pipe is finally obtained by traction through a post-traction machine, sizing through a vacuum spraying and sizing box and the like. According to the composite pipe disclosed by the invention, the technology is adopted, the preparation process is simple, the existing tape plastic covering treatment process and the composite pipe forming process are combined into a whole, the number of workers for production is reduced, and the degree of automation is improved; furthermore, the used device is a conventional device, and the cost is reduced; and in addition, adhesive resin is firstly coated on the outer surface of the core pipe, and the plain woven fiber mesh tape is further wounded, so that the interface problem in the pipe is effectively solved, the mechanical properties of the pipe are upgraded and the stability of the pipe during long-term use is also improved.
Description
Technical field
The invention belongs to compound pipe molding process engineering field, be specifically related to a kind of fibre material adopting reinforcing fiber plain weave and be wound around reinforced composite pipe and preparation process and equipment.
Background technique
Along with developing rapidly of petroleum gas and chemical industry, annual China increases the chemical industry fluid-transporting tubing laid newly and reaches thousands of miles.The metallic conduit of representative that traditional with steel pipe is exposes the problems such as corrosion failure, tube wall incrustation, mounting and installation difficulty and maintenance and repair be costly in the use in these fields.Meanwhile, the consequences such as the environmental pollution brought by above problem, security incident, production pause and energy consumption increase, have had a strong impact on the national economic development and ecotope balance.
Filament-wound Machine reinforced composite pipe is a kind of novel thermoplastic multiple tube of rising in recent years, there is the plurality of advantages such as corrosion-resistant, wear-resistant, heat resistance is good, thermal conductivity is low, surface roughness is low, flexibility is good, not only overcome the defect of conventional metals pipeline, also have both be easy to recycle, the advantage such as the strong and environmental friendliness of designability.At present, the moulding process that such composite pipe adopts first is extruded into core barrel, then mould the fiber band processed directly be wrapped on core pipe by covering, last coated outermost resin.But the body material due to tubing is thermoplastic resin, melt viscosity is large, is difficult to reinforcing fiber completely coated, the problem of therefore body Presence of an interface combination, and Long-Term Properties is difficult to ensure.
Summary of the invention
For the above-mentioned problems in the prior art, the object of the present invention is to provide and a kind ofly there is excellent mechanical performance and the stable fibre material of long-term behaviour is wound around reinforced composite pipe and preparation process and equipment, solve the defect that current Filament-wound Machine reinforced composite pipe interface cohesion is bad, Long-Term Properties is unstable.
Described fibre material is wound around reinforced composite pipe, comprise internal layer core pipe and rear clad, it is characterized in that arranging fibre material between internal layer core pipe and rear clad, described fibre material is wound around and is arranged on internal layer core tube outer surface, fixed by coating binding resin, more coated by rear clad.
Described fibre material is wound around reinforced composite pipe, it is characterized in that the continuous grids band that described fibre material twists bunchy by reinforcing fiber, plain weave obtains, and the grid of lengths is square, and size of mesh opening is 1.0mm-3.0mm.
Described fibre material is wound around reinforced composite pipe, it is characterized in that described reinforcing fiber is glass fibre, aramid fibre or basalt fibre, every root reinforcing fiber, before being woven into band, through Water-soluble adhesive dipping process, ensures this reinforcing fiber monofilament surface complete wetting.
Described fibre material is wound around reinforced composite pipe, it is characterized in that fibre material is 0.5mm-4.0mm at the winding thickness of internal layer core tube outer surface.
Described fibre material is wound around the preparation process of reinforced composite pipe, it is characterized in that comprising the steps:
1) resin raw material by core pipe extruder and core pipe extrusion die through heating, shear, extrude after plasticizing, then under the traction of front haulage machine, enter premenstrual vacuum spray sizing tank carry out sizing, obtain internal layer core pipe;
2) internal layer core pipe via front heating cabinet to this core tube outer surface heating and melting, by coating extrusion die, binding resin is coated to the outer surface of internal layer core pipe by coating extruder and gluing extrusion die, fibre material successively carries out winding to the internal layer core pipe after painting binding resin by the first Stetch Wrapping Machine and the second Stetch Wrapping Machine and strengthens, then by rear heating cabinet heating, binding resin is embedded completely to fibre material;
3) step 2) the internal layer core pipe be wrapped over that obtains by rear haulage machine travel to rear coated die head, the outer field resin raw material of tubing is by rear coated extruder and the coated internal layer core tube outer surface be wrapped over of rear coated die head, again by final vacuum spray sizing tank sizing, obtain fibre material and be wound around reinforced composite pipe, coil obtain final coil pipe product through coiling pipe collecting machine.
Described fibre material is wound around the preparation process of reinforced composite pipe, and it is characterized in that the core pipe extruder described in step 1) is single screw extrusion machine, extrusion temperature is 180-230 DEG C, and the circulating cooling coolant-temperature gage of initial vacuum spray sizing tank is 14-18 DEG C.
Described fibre material is wound around the preparation process of reinforced composite pipe, it is characterized in that step 2) described in front heating cabinet heating-up temperature be 220-240 DEG C, binding resin extrusion temperature is 200-220 DEG C, the rotating speed of the first Stetch Wrapping Machine and the second Stetch Wrapping Machine is 2-40rpm, is wound around tension force and is 150-600N.
Described fibre material is wound around the preparation process of reinforced composite pipe, it is characterized in that the rear heating cabinet heating-up temperature described in step 3) is 220-240 DEG C, rear coated extrusion temperature is 200-230 DEG C, and the circulating cooling coolant-temperature gage of final vacuum spray sizing tank is 14-18 DEG C.
Described fibre material is wound around the preparation process of reinforced composite pipe, it is characterized in that coiling the speed of coiling of pipe collecting machine and front haulage machine, the hauling speed of rear haulage machine is consistent.
Described fibre material is wound around the preparation process of reinforced composite pipe equipment used, it is characterized in that comprising the core pipe extruder arranged from the beginning to the end successively, initial vacuum spray sizing tank, front haulage machine, front heating cabinet, coating extruder, first Stetch Wrapping Machine, second Stetch Wrapping Machine, rear heating cabinet, rear coated extruder, final vacuum spray sizing tank, rear haulage machine and coil pipe collecting machine, described core pipe outlet of extruder place arranges core pipe extrusion die, bottom coating extruder, coating extrusion die is set, bottom rear coated extruder, rear coated die head is set, between described rear heating cabinet and rear coated extruder, centralized positioning frame is set.
By adopting above-mentioned technology, compared with prior art, beneficial effect of the present invention is as follows:
1) after band Stetch Wrapping Machine of the present invention is positioned at the coating extruder of binding resin, have two, fibre material is responsible for be wound on internal layer core pipe, each Stetch Wrapping Machine comprises more than 2 tep reels, each single-deck is designed with tension force control system and winding angle regulatory function, two Stetch Wrapping Machines are controlled by a set of transmission system, to ensure the synchronism be wound around;
2) the present invention by arranging fibre material between internal layer core pipe and rear clad, fibre material is wound around and is arranged on internal layer core tube outer surface, fixed by coating binding resin, coated by rear clad again, solve the defect that current Filament-wound Machine reinforced composite pipe interface cohesion is bad, Long-Term Properties is unstable, make to become complete one between pipeline each several part;
3) preparation process's statement of account of the present invention, will cover and mould processing procedure and compound pipe molding process unites two into one by band in the past, and decrease production labor people quantity, improve automaticity, and equipment used be all conventional equipment, reduce cost;
4) the present invention is by first applying binding resin at core tube outer surface, be wound around a kind of technological method of plain weave fibre material again, effectively solve the interface problem of tubing inside, not only improve the mechanical property of tubing, further improve the stability of Long-Time Service.
Accompanying drawing explanation
Fig. 1 is tube forming equipment schematic diagram of the present invention;
Fig. 2 is fibre material structural representation of the present invention;
Fig. 3 is composite pipe pipe structure schematic diagram of the present invention.
In figure: 1-core pipe extruder, 2-core pipe extrusion die, 3-initial vacuum spray sizing tank, 4-front haulage machine, heating cabinet before 5-, 6-applies extruder, 7-applies extrusion die, 8-first Stetch Wrapping Machine, 9-second Stetch Wrapping Machine, heating cabinet after 10-, coated extruder after 12-, coated die head after 13-, 14-final vacuum spray sizing tank, 15-rear haulage machine, 16-coils pipe collecting machine, clad after 17-, 18-fibre material, 19-internal layer core pipe.
Embodiment
Below in conjunction with Figure of description, the invention will be further described:
As Figure 1-3, fibre material is wound around reinforced composite pipe, comprise internal layer core pipe 19 and rear clad 17, between internal layer core pipe 19 and rear clad 17, fibre material 18 is set, described fibre material 18 is wound around and is arranged on internal layer core pipe 19 outer surface, fixed by coating binding resin, coated by rear clad 17 again, wherein fibre material 18 twists bunchy by reinforcing fiber, the continuous grids band that plain weave obtains, the grid of lengths is square, size of mesh opening is 1.0mm-3.0mm, this reinforcing fiber is glass fibre, the high strength and modulus such as aramid fibre or basalt fibre and the high-performance fiber that under high temperature, intensity can not reduce.Every root reinforcing fiber is before being woven into band, and through Water-soluble adhesive dipping process, ensure this reinforcing fiber monofilament surface complete wetting, fibre material is 0.5mm-4.0mm at the winding thickness of internal layer core tube outer surface.
As shown in Figure 1, the preparation process of fibre material winding reinforced composite pipe of the present invention is as follows: first resin raw material is extruded by core pipe extruder 1 and core pipe extrusion die 2, and premenstrual vacuum spray sizing tank 3 sizing, obtains core pipe.Core pipe is under the traction of front haulage machine 4, after front heating cabinet 5 pairs of pipe outer surface heating and meltings, by coating extrusion die 7, binding resin is coated to pipe outer surface by coating extruder 6 and gluing extrusion die 7, first Stetch Wrapping Machine 8 and the second Stetch Wrapping Machine 9 successively carry out winding to the core pipe after gluing and strengthen, then by rear heating cabinet 10 heating, binding resin are embedded completely to fibre material.Rear coated extruder 12 and rear coated die head 13 are responsible for tubing cladding material to extrude the pipe outer surface being coated on and being wrapped over, and form pipe material product by final vacuum spray sizing tank 14 sizing, coil obtain final coil pipe product through coiling pipe collecting machine 16.Front haulage machine 4, rear haulage machine 10 are responsible for traction tubing and are advanced by process flow steps.
Embodiment one: aramid fiber lengths is wound around enhanced polyethylene composite pipe
Extrude adding single screw extrusion machine after polyethylene (PE80) 95 parts and black polyethylene master batch 5 parts of combination dryings after adding hot shearing plasticizing, extrusion temperature 180-200 DEG C.Extrusion resin traction under traction tube helps enters initial vacuum spray sizing tank and forms core pipe, circulated sprinkling cooling water temperature 14-18 DEG C.Core pipe is by front heating cabinet, and heating-up temperature 220-240 DEG C makes by binding resin coating die head after tube surfaces melting, binding resin extrusion temperature 200-220 DEG C.First and second Stetch Wrapping Machines are successively wound around the tubing after gluing, and Stetch Wrapping Machine speed range is 2-40rpm, are wound around tension force 150-600N.Tubing after winding is through heating cabinet later, heating-up temperature 220-240 DEG C, after again traction carry out coated process to rear coated extrusion die, polyethylene extrusion resin formula is identical with core pipe, extrusion temperature 200-220 DEG C, product tubing is formed into, circulated sprinkling cooling water temperature 14-18 DEG C through final vacuum spray sizing tank.Pipe collecting machine closed tube coiled by tubing, coils speed consistent with hauling speed.
Embodiment two: fiberglass mesh band is wound around Reinforced Polypropylene composite pipe
Extrude adding single screw extrusion machine after atactic copolymerized polypropene (PP-R) 96 parts and green master batch 4 parts of combination dryings after adding hot shearing plasticizing, extrusion temperature 210-230 DEG C.Extrusion resin traction under traction tube helps enters initial vacuum spray sizing tank and forms core pipe, circulated sprinkling cooling water temperature 14-18 DEG C.Core pipe is by front heating cabinet, and heating-up temperature 230-240 DEG C makes by binding resin coating die head after tube surfaces melting, binding resin extrusion temperature 200-220 DEG C.First and second Stetch Wrapping Machines are successively wound around the tubing after gluing, and Stetch Wrapping Machine speed range is 2-40rpm, are wound around tension force 150-400N.Tubing after winding is through heating cabinet later, and after heating-up temperature 230-240 DEG C, traction is to rear coated die head again, and rear coated extrusion temperature 210-230 DEG C, is formed into product tubing, circulated sprinkling cooling water temperature 14-18 DEG C through final vacuum spray sizing tank.Pipe collecting machine closed tube coiled by tubing, coils speed consistent with hauling speed.
Claims (6)
1. the preparation process of a fibre material winding reinforced composite pipe, described fibre material is wound around reinforced composite pipe and comprises internal layer core pipe (19) and rear clad (17), it is characterized in that arranging fibre material (18) between internal layer core pipe (19) and rear clad (17), described fibre material (18) is wound around and is arranged on internal layer core pipe (19) outer surface, fixed by coating binding resin, coated by rear clad (17) again, it is characterized in that comprising the steps:
1) resin raw material is extruded after heating, shearing, plasticizing by core pipe extruder (1) and core pipe extrusion die (2), under the traction of front haulage machine (4), enter initial vacuum spray sizing tank (3) again carry out sizing, obtain internal layer core pipe (19), described core pipe extruder (1) is single screw extrusion machine, extrusion temperature is 180-230 DEG C, and the circulating cooling coolant-temperature gage of initial vacuum spray sizing tank is 14-18 DEG C;
2) internal layer core pipe (19) via front heating cabinet (5) to this core tube outer surface heating and melting, by coating extrusion die (7), binding resin is coated to the outer surface of internal layer core pipe (19) by coating extruder (6) and coating extrusion die (7), fibre material (18) successively carries out winding to the internal layer core pipe (19) after painting binding resin by the first Stetch Wrapping Machine (8) and the second Stetch Wrapping Machine (9) and strengthens, by rear heating cabinet (10) heating, binding resin is embedded completely to fibre material (18) again, described front heating cabinet (5) heating-up temperature is 220-240 DEG C, binding resin extrusion temperature is 200-220 DEG C, the rotating speed of the first Stetch Wrapping Machine (8) and the second Stetch Wrapping Machine (9) is 2-40rpm, be wound around tension force and be 150-600N,
3) step 2) the internal layer core pipe (19) be wrapped over that obtains draws to rear coated die head (13) by rear haulage machine (15), the outer field resin raw material of tubing is by rear coated extruder (12) and coated internal layer core pipe (19) outer surface be wrapped over of rear coated die head (13), sizing tank (14) sizing is sprayed again by final vacuum, obtain fibre material and be wound around reinforced composite pipe, coil obtain final coil pipe product through coiling pipe collecting machine (16), described rear heating cabinet (10) heating-up temperature is 220-240 DEG C, rear coated extrusion temperature is 200-230 DEG C, the circulating cooling coolant-temperature gage of final vacuum spray sizing tank is 14-18 DEG C.
2. a kind of fibre material according to claim 1 is wound around the preparation process of reinforced composite pipe, it is characterized in that described fibre material (18) be twist bunchy by reinforcing fiber, continuous grids band that plain weave obtains, the grid of lengths is square, and size of mesh opening is 1.0mm-3.0mm.
3. a kind of fibre material according to claim 1 is wound around the preparation process of reinforced composite pipe, it is characterized in that described reinforcing fiber is glass fibre, aramid fibre or basalt fibre, every root reinforcing fiber is before being woven into band, through Water-soluble adhesive dipping process, ensure this reinforcing fiber monofilament surface complete wetting.
4. a kind of fibre material according to claim 1 is wound around the preparation process of reinforced composite pipe, it is characterized in that fibre material (18) is 0.5mm-4.0mm at the winding thickness of internal layer core pipe (19) outer surface.
5. fibre material according to claim 1 is wound around the preparation process of reinforced composite pipe, it is characterized in that coiling the speed of coiling of pipe collecting machine (16) and front haulage machine (4), the hauling speed of rear haulage machine (15) is consistent.
6. the equipment that the preparation process of a fibre material winding reinforced composite pipe as claimed in claim 1 is used, it is characterized in that comprising the core pipe extruder (1) arranged from the beginning to the end successively, initial vacuum spray sizing tank (3), front haulage machine (4), front heating cabinet (5), coating extruder (6), first Stetch Wrapping Machine (8), second Stetch Wrapping Machine (9), rear heating cabinet (10), rear coated extruder (12), final vacuum spray sizing tank (14), rear haulage machine (15) and coil pipe collecting machine (16), described core pipe extruder (1) outlet port arranges core pipe extrusion die (2), coating extruder (6) bottom arranges coating extrusion die (7), rear coated extruder (12) bottom arranges rear coated die head (13), between described rear heating cabinet (10) and rear coated extruder (12), centralized positioning frame (11) is set.
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| CN201210502640.3A CN103016856B (en) | 2012-11-30 | 2012-11-30 | Fiber mesh tape-wound and reinforced composite pipe, preparation process and device |
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| CN201210502640.3A CN103016856B (en) | 2012-11-30 | 2012-11-30 | Fiber mesh tape-wound and reinforced composite pipe, preparation process and device |
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| CN103016856B true CN103016856B (en) | 2015-01-21 |
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